check if member exists using enable_if

Question

Here\'s what I\'m trying to do:

template  struct Model
{
    vector vertices ;

    #if T has a .normal member
    void transform(         


        

Answer 1

template<
typename HTYPE, 
typename = std::enable_if_t::value>
>
static void close_release
(HTYPE* ptr) {
    ptr->var1;
}

Using enable_if and decltype to let compiler to check variable, hope to help.